/Engine/Source/Runtime/Engine/Classes/Animation/BlendSpace.h
Get PerBoneInterpolationIndex for the input BoneIndex If nothing found, return INDEX_NONE
virtual int32 GetPerBoneInterpolationIndex ( const [FCompactPoseBoneIndex](API\Runtime\AnimationCore\FCompactPoseBoneIndex) & InCompactPoseBoneIndex, const [FBoneContainer](API\Runtime\Engine\FBoneContainer) & RequiredBones, const [IInterpolationIndexProvider::FPerBoneInterpolationData](API\Runtime\Engine\IInterpolationIndexProvider\FPerBoneInterpolationData) * Data ) const